大量收購/回收/出售 Agilent E9300A、Agilent E9321A、Agilent E9322A、Agilent E9323A、Agilent E9325A、Agilent E9326A、Agilent E9327A 等功率探頭?。?
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E4446A PSA 頻譜分析儀，3 Hz - 44 GHz
[E4446AS收]主要特性與技術(shù)指標(biāo)
[E4446AS收]性能
[E4446AS收]+/-0.19 dB 絕對幅度精度
[E4446AS收]154 dBm 顯示平均噪聲電平（DANL）
[E4446AS收]10 kHz 偏置時的相噪：-118 dBc/Hz
[E4446AS收]81 dB W-CDMA ACLR 動態(tài)范圍
[E4446AS收]分析帶寬
[E4446AS收]10 MHz 分析帶寬（用于基本模式的選件 B7J）
[E4446AS收]可選 40 或 80 MHz 分析帶寬，以便捕捉和測量復(fù)雜信號
[E4446AS收]適用于 40 或 80 MHz 分析帶寬的 -78 dB（額定值）三階互調(diào)
[E4446AS收]適用于校準(zhǔn)后的 VSA 測量的 300 MHz 分析帶寬
[E4446AS收]靈活性
[E4446AS收]靈活的平臺，包含 16 個可選且易于使用的內(nèi)置測量專用軟件和硬件選件
[E4446AS收]標(biāo)配 PowerSuite 一鍵式功率測量
[E4446AS收]通用數(shù)據(jù)分析、可視化、計量自動化的數(shù)據(jù)分析軟件 MATLAB。PSA 系列 [E4446AS收]MATLAB軟件
[E4446AS收]描述
[E4446AS收]E4446A PSA 高性能頻譜分析儀可測量和監(jiān)測頻率高達(dá) 44 GHz 的復(fù)雜射頻[E4446AS收]、微波和毫米波信號。使用外混頻選件可進(jìn)一步擴(kuò)展頻率范圍：使用安捷[E4446AS收]倫外混頻器時可達(dá)到 110 GHz；使用其他廠商的混頻器時可達(dá)到 325 GHz-
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HP8590系列：
HP8594Q，HP8591A，HP8596E，HP8590D，HP8590A，HP8590E，
HP8593E，HP8593EM，HP8591B，HP8591C，HP8594E，HP8594EM，
HP8590C，HP8590L，HP8595A，HP8595E，HP8592D，HP8592E，
Hp8591E，HP8591EM，HP8594A，HP8594C，HP8596A，HP8596EC，
HP8595EM，HP8596EM，HP8592A，HP8592B，HP8593A，HP8593B，HP8592L，
Introduction
Advances in RF and microwave communication technology
have extended system performance to levels previously
unattainable. Design emphasis on sensitivity and selectivity
have resulted in dramatic improvements in those areas.
However, as factors previously limiting system performance have been overcome, new limitations arise and certain parameters take on increased importance. One of
these parameters is the phase noise of signal sources
used in pulsed RF and microwave systems.
In pulsed radar systems, for example, the phase noise of
the receiver local oscillator sets the minimum signal level
that must be returned from a target in order to be detectable. In this case, phase noise affects the selectivity of the
radar receiver which in turn determines the effective range
of the overall system.
Since the overall dynamic range of the radar system is
influenced by the noise of the transmitted signal, it is not
only important to know the absolute noise of individual
oscillators but to know the residual or additive noise of
signal processing devices like power amplifiers and pulse
modulators. Because the final signal in most radar systems
is pulsed, making absolute phase noise measurements on
the pulsed carrier is essential to determining the overall
performance of the system.